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P1399

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On Honda vehicles the OBD code p1399 indicates that there is a random misfire occurring in the engine. In most cases a valve adjustment will correct this issue, however a blocked passage in the EGR (Exhaust Gas Recirculation) system can...

All these codes point to engine misfires. You should pull the spark plug wires to see if oil is on the spark plug wires causing the misfire. You would need to replace the valve cover gaskets and spark plug tube...

Hello. A random misfire can be caused by many different things such as dirty fuel injectors, a weak fuel pump, a bad fuel pressure regulator, fouled spark plugs or wires, a failing ignition coil or a vacuum leak. To get...